Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
28 + 10 = ______
46 − 10 = ______
9 × 10 = ______
94 − 10 = ______
62 − 10 = ______
47 − 10 = ______
69 + 10 = ______
2 × 10 = ______
24 + 20 = ______
7 × 10 = ______
67 + 20 = ______
14 + 10 = ______
15 + 10 = ______
80 − 10 = ______
14 + 20 = ______
80 + 20 = ______
49 + 10 = ______
91 − 10 = ______
64 + 10 = ______
3 × 10 = ______
